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Proceedings Paper

Time-to-impact sensors in robot vision applications based on the near-sensor image processing concept
Author(s): Anders Åström; Robert Forchheimer
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Paper Abstract

Based on the Near-Sensor Image Processing (NSIP) concept and recent results concerning optical flow and Time-to- Impact (TTI) computation with this architecture, we show how these results can be used and extended for robot vision applications. The first case involves estimation of the tilt of an approaching planar surface. The second case concerns the use of two NSIP cameras to estimate absolute distance and speed similar to a stereo-matching system but without the need to do image correlations. Going back to a one-camera system, the third case deals with the problem to estimate the shape of the approaching surface. It is shown that the previously developed TTI method not only gives a very compact solution with respect to hardware complexity, but also surprisingly high performance.

Paper Details

Date Published: 15 February 2012
PDF: 10 pages
Proc. SPIE 8298, Sensors, Cameras, and Systems for Industrial and Scientific Applications XIII, 829808 (15 February 2012); doi: 10.1117/12.905823
Show Author Affiliations
Anders Åström, Combitech AB (Sweden)
Robert Forchheimer, Linköping Univ. (Sweden)

Published in SPIE Proceedings Vol. 8298:
Sensors, Cameras, and Systems for Industrial and Scientific Applications XIII
Ralf Widenhorn; Valérie Nguyen; Antoine Dupret, Editor(s)

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